Oh yeah, I forgot about action figures. I have a bunch of Donkey Kong ones; Diddy, Donkey (came with a "vine" you can attach to stuff and make the figures swing on), Funky (surf board included), Cranky (with a kung-fu action arm). Each figure came with coconuts and bananas. I remember there was also a picture Kiddy figure and couple other things on the back of each box.
Oh I have loads! I have an official Nintendo Gameboy case for the like really really old gameboy the very first one, the gameboy wifi accessory cord, 3 gameboys (2 without screen frame 1 in perfect condition), Nintendo DSi box that i kept and offcourse my DSi, pokemon platnium poster (even though I dont even have that game), DS lite, gameboy advance SP, couple of game guides, super mario bros wii poster, NES, Super NES, mcdonalds mario ball, mcdonalds Boo ghost figurine, mario kart 64 telephone (very rare), gamecube, limited edition pokemon heartgold ho-oh figurine from gamestop, DK bongo gamecube accesory, pokemon heartgold soulsilver pokewalker, mario on koopashell figurine, and then there are all the games to all of my current nintendo systems. i'm trying to get every single nintendo system ever made even if they are only released japan.
-Mario, Luigi, Toad, and Yoshi figurines.
-Mini Luigi figurine
-Wired DK motion control car.
-Petey Pirahna plush.
-A bunch of Mario plushes (including a rare one thats HUGE.)
-A bunch of Pokemon figures and plushes -Mario, and The Legend Of Zelda hats.
-SMG 1 &2, Twilight Princess, Pokemon Mystery Dungeon, and Ruby/Sapphire posters in my room.
-A few strategy guides (those count, right?)
-A bunch of t-shirts.
And that figure wsbm mentioned (i still haven't got it yet though.)
I have a working SNES (not yellow yet) 2 posters, one that came with the original NES, it's the Now you're playing with power crashing through glass poster, and one that came with the SNES, Now you're playing with super power. I also have some instruction manuals that came with the NES and SNES. The posters are also in mint condition straight from the original plastic too.